/* PAYATE Scientific Calculator — scoped under #sci. */
@font-face{font-family:"PoppinsFB";src:local("Segoe UI Semibold"),local("Segoe UI"),local("Roboto Medium"),local("Roboto"),local("Helvetica Neue"),local("Arial");size-adjust:107%;ascent-override:98%;descent-override:32.7%;line-gap-override:0%}
body{margin:0;background:#f4f7fb;color:#14233c;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased}
#sci{--acc:#7c5cff;--acc-d:#6344e6;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;max-width:820px;margin:0 auto;padding:18px 16px 40px}
#sci h1,#sci h2{font-family:Poppins,"PoppinsFB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
#sci code{background:#eef2f8;padding:1px 5px;border-radius:4px;font-size:.9em;font-family:var(--mono)}
#sci .sci-hero{background:#fff;border:1px solid #e6ecf5;border-radius:16px;padding:24px;box-shadow:0 1px 2px rgba(15,27,45,.05);margin-bottom:16px}
#sci .sci-hero h1{margin:0 0 8px;font-size:25px;line-height:1.2;color:#0f1b2d;font-weight:700}
#sci .sci-hero p{margin:0;font-size:14px;line-height:1.7;color:#4a5b73;max-width:700px}
#sci .sci-card{background:#fff;border:1px solid #e6ecf5;border-radius:14px;padding:18px;box-shadow:0 1px 2px rgba(15,27,45,.05);margin-bottom:16px}
/* Screen */
#sci .sci-screen{background:#0f1b2d;border-radius:12px;padding:14px 16px 12px;margin-bottom:14px;position:relative}
#sci .sci-flags{display:flex;gap:8px;margin-bottom:6px}
#sci .sci-flag{font-size:11px;font-weight:700;letter-spacing:.04em;color:#0f1b2d;background:var(--acc);border-radius:5px;padding:2px 8px}
#sci .sci-flag.off{background:#30405a;color:#7c8aa3}
#sci .sci-expr{width:100%;box-sizing:border-box;border:0;background:transparent;color:#fff;font-family:var(--mono);font-size:19px;text-align:right;padding:4px 0;word-break:break-all}
#sci .sci-expr:focus{outline:none}
#sci .sci-expr::placeholder{color:#55657f}
#sci .sci-result{color:var(--acc);font-family:var(--mono);font-size:26px;font-weight:700;text-align:right;min-height:32px;line-height:1.2;word-break:break-all;margin-top:2px}
#sci .sci-result.err{color:#ff8a8a;font-size:15px;font-weight:600}
/* Keypad */
#sci .sci-pad{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
#sci .sci-k{border:1px solid #e1e7f0;background:#fbfcfe;color:#14233c;border-radius:10px;padding:13px 4px;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .12s,border-color .12s,transform .04s;-webkit-user-select:none;user-select:none}
#sci .sci-k:hover{background:#f1f4fa;border-color:#c9d3e3}
#sci .sci-k:active{transform:translateY(1px)}
#sci .sci-k.fn{font-size:13px;color:#43506a;background:#f3f5fa}
#sci .sci-k.mem{font-size:12.5px;color:var(--acc-d);background:#f2efff;border-color:#e3dcff}
#sci .sci-k.op{color:var(--acc-d);font-size:17px}
#sci .sci-k.num{font-size:17px;color:#0f1b2d}
#sci .sci-k.danger{color:#c2410c;background:#fff4ed;border-color:#ffe0cc;font-size:14px}
#sci .sci-k.eq{grid-column:span 6;background:var(--acc);border-color:var(--acc);color:#fff;font-size:18px;padding:14px 4px}
#sci .sci-k.eq:hover{background:var(--acc-d)}
#sci .sci-info{background:#fff;border:1px solid #e6ecf5;border-radius:14px;padding:18px 22px;box-shadow:0 1px 2px rgba(15,27,45,.05);margin-bottom:16px}
#sci .sci-info h2{margin:0 0 10px;font-size:17px;color:#0f1b2d}
#sci .sci-info ol{margin:0 0 10px;padding-left:20px}
#sci .sci-info li{font-size:13.5px;line-height:1.8;color:#4a5b73}
#sci .sci-info p{margin:0;font-size:13.5px;line-height:1.8;color:#4a5b73}
#sci .sci-faq{background:#fff;border:1px solid #e6ecf5;border-radius:16px;padding:20px 22px;box-shadow:0 1px 2px rgba(15,27,45,.05)}
#sci .sci-faq h2{margin:0 0 10px;font-size:19px;color:#0f1b2d}
#sci .sci-faq details{border-top:1px solid #eef2f8;padding:2px 0}
#sci .sci-faq details:first-of-type{border-top:0}
#sci .sci-faq summary{cursor:pointer;list-style:none;padding:12px 26px 12px 2px;position:relative;font-weight:600;font-size:14.5px;color:#14233c}
#sci .sci-faq summary::-webkit-details-marker{display:none}
#sci .sci-faq summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:18px;color:#5a6782}
#sci .sci-faq details[open] summary::after{content:"\2212"}
#sci .sci-faq details p{margin:0 2px 12px;font-size:13.5px;line-height:1.7;color:#4a5b73}
@media (max-width:480px){
  #sci .sci-pad{gap:6px}
  #sci .sci-k{padding:12px 2px;font-size:14px}
  #sci .sci-k.fn{font-size:12px}
  #sci .sci-result{font-size:22px}
}
/* Shared More PAYATE tools related section */
.pyt-rel{max-width:820px;margin:16px auto;padding:20px 22px;background:#fff;border:1px solid #e6ecf5;border-radius:14px;box-shadow:0 1px 2px rgba(15,27,45,.05);font-family:Poppins,"PoppinsFB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:#14233c}
.pyt-rel h2{margin:0 0 12px;font-size:18px;color:#0f1b2d}
.pyt-rel .prg{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px}
.pyt-rel a{display:block;text-decoration:none;border:1px solid #e6ecf5;border-radius:10px;padding:12px 14px;background:#fbfcfe;transition:border-color .15s,background .15s}
.pyt-rel a:hover{border-color:#7c5cff;background:#f5f2ff}
.pyt-rel .prt{display:block;font-weight:600;font-size:14px;color:#14233c;margin-bottom:2px}
.pyt-rel .prd{display:block;font-size:12px;line-height:1.4;color:#5a6782}